Chile earthquakes

M3.9 earthquake 69 km NW of Illapel, Chile

A magnitude 3.9 earthquake struck 69 km NW of Illapel, Chile on Sat, Apr 29, 2017, 7:15 PM GMT-3 (22:15 UTC), 28 km (17 mi) below the surface.

A larger quake followed: M4.0 59 km WNW of Illapel, Chile. This one was a foreshock.

Illapel forecastMore in Chile

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.9 (mwr), minor
Local time
UTC
2017-04-29 22:15:56 UTC
Depth
27.6 km (17.1 mi), shallow
Epicenter
31.275° S, 71.772° W
Region
Chile
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Reverse (thrust)
Moment magnitude
3.9 Mwr
Nodal plane 1
Strike 4°, dip 58°, rake 96°
Nodal plane 2
Strike 173°, dip 32°, rake 81°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.5 km horizontally, 5.3 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
189°, poorly surrounded by stations
Stations used
39

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.059 km WNW of Illapel, Chile · 3424 days ago · 13 km deep · 22 km away
  2. 4.556 km SW of Illapel, Chile · 3418 days ago · 43 km deep · 85 km away
  3. 4.368 km WSW of Illapel, Chile · 3417 days ago · 65 km deep · 74 km away · felt by 1
  4. 4.053 km W of Ovalle, Chile · 3410 days ago · 28 km deep · 73 km away · felt by 2
  5. 4.424 km SW of Ovalle, Chile · 3406 days ago · 43 km deep · 70 km away · felt by 3
  6. 4.167 km WNW of La Ligua, Chile · 3404 days ago · 33 km deep · 97 km away · felt by 1
  7. 4.15 km SSW of Ovalle, Chile · 3404 days ago · 58 km deep · 88 km away · felt by 1
  8. 4.340 km WSW of Ovalle, Chile · 3403 days ago · 28 km deep · 69 km away
  9. 5.757 km WNW of Illapel, Chile · 3391 days ago · 27 km deep · 25 km away · felt by 155
  10. 4.059 km WNW of Illapel, Chile · 3391 days ago · 34 km deep · 25 km away
  11. 4.126 km SSW of Monte Patria, Chile · 3387 days ago · 79 km deep · 79 km away · felt by 1
  12. 4.5Near the coast of Valparaiso, Chile · 3385 days ago · 22 km deep · 93 km away · felt by 1
  13. 5.117 km WSW of Ovalle, Chile · 3377 days ago · 53 km deep · 78 km away · felt by 15

Before

  1. 3.794 km W of Illapel, Chile · 3438 days ago · 13 km deep · 66 km away
  2. 4.636 km SW of Illapel, Chile · 3446 days ago · 52 km deep · 69 km away · felt by 4
  3. 4.580 km WNW of La Ligua, Chile · 3447 days ago · 16 km deep · 89 km away
  4. 4.166 km W of Illapel, Chile · 3450 days ago · 58 km deep · 52 km away
  5. 5.455 km SW of Ovalle, Chile · 3451 days ago · 38 km deep · 37 km away · felt by 14
  6. 4.2160 km WNW of Illapel, Chile · 3455 days ago · 10 km deep · 98 km away
  7. 4.3141 km WNW of Illapel, Chile · 3457 days ago · 33 km deep · 82 km away
  8. 4.227 km WSW of Ovalle, Chile · 3462 days ago · 49 km deep · 70 km away
  9. 4.233 km WSW of Ovalle, Chile · 3463 days ago · 42 km deep · 63 km away
  10. 5.233 km WSW of Ovalle, Chile · 3463 days ago · 42 km deep · 63 km away · felt by 27

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10008m3d. Read Thu, Sep 24, 2026, 5:37 AM UTC.